Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b29adcf7d4419b…

MALICIOUS

PDF

51.5 KB Created: 2020-09-01 19:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80cd64dc10064d9bd9bd53a4828ab5b4 SHA-1: a2ce543bc8114df9128ba1fba7c570d5ca20825e SHA-256: c3b29adcf7d4419bcb1adecfe309b13cdab7d942def4136976b771d00d2ee226
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a free proposal template. This link likely leads to further malicious content or malware download. The PDF also contains a large number of links to Shopify, likely for SEO manipulation or to host further payloads, with one such link being https://cdn.shopify.com/s/files/1/0462/3692/6112/files/lalevebarazukerixusi.pdf. The presence of a visual download button lure further supports a malicious intent.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/wix?keyword=free++proposal+template+word
    • https://cdn.shopify.com/s/files/1/0462/3692/6112/files/lalevebarazukerixusi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9080/2856/files/pifijugezojuparenadarodi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/chromosome_painting.pdf
    • https://cdn.shopify.com/s/files/1/0430/0685/3269/files/5905652154.pdf
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/97387099244.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3105/files/buluxobovamumegomem.pdf
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/32712745498.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/deraterugowewazo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9888/0680/files/59665816085.pdf
    • https://cdn.shopify.com/s/files/1/0435/1636/2904/files/98431689357.pdf
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/77238628899.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/breaking_dawn_part_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/jovegene.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/91548446135.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008206.bin
1b6e95c3881ecc9be1dc45928822c8002e791a686c4c597794ffd962a3175d2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8206 5152 bytes
font_01_sfnt_off00009381.bin
2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349
pdf-font-stream PDF embedded font (sfnt) at offset 0x9381 2268 bytes
font_02_sfnt_off00009d94.bin
a4b25e3ffbbecbd9bd9d4d81cf21aa00b7b9a62d790e6cc96716c885569d8c7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D94 10364 bytes